Valve announces a free update to the Portal 2 Puzzle Maker to allow users to create and publish co-op maps for Portal 2, the puzzle sequel, and that have added a "quick play" feature to ease access to the top-rated maps on the Portal 2 portal. They are promoting this by giving all current owners of Portal 2 coupon to give away to allow a friend to buy the game for 75% off. Here's word:

That's right: Puzzle creators can now design and publish co-op maps, which puzzle players can now greedily consume. Well, as long as they have a co-op partner. Which the 75% off coupon should help them (i.e.: you) find. We've also added a "Quick Play" feature that creates never-ending, auto-generated playlists of the top-rated maps in a variety of categories. It has literally never been easier to figuratively jump in and literally play some Portal.

The multi-player level creation system in Halo 3, ODST and Reach has long been an embarrassment to the PC gaming community outside of Gary's mod. Step in the right direction Valve! Maybe you are not just the pretty self owned online publishing monstrosity we take you for.